Screen refreshing produces visual artifacts

HTDx64

Scrolling the page for a while produces visual artifacts like shown on the screenshot. Sometimes the pages looks like this even without scrolling.

I observed this behavior in several versions of Vivaldi, including the latest one.

The issue occurs only in Vivaldi, no issue in other Chromium based browsers. To make this screenshot I had to scroll the Reddit page up and down for several seconds.

Details about my display settings: NVidia GTX 1060 (latest drivers) 3840x2160, scale 200%, color profile DCI P3 D65.

luetage

@HTDx64 Check vivaldi://gpu for issues.

HTDx64

@luetage

Here's the beginning of the report:

Graphics Feature Status

Canvas: Hardware accelerated
Canvas out-of-process rasterization: Disabled
Direct Rendering Display Compositor: Disabled
Compositing: Hardware accelerated
Multiple Raster Threads: Enabled
OpenGL: Enabled
Rasterization: Hardware accelerated on all pages
Raw Draw: Disabled
Skia Renderer: Enabled
Video Decode: Hardware accelerated
Video Encode: Hardware accelerated
Vulkan: Enabled
WebGL: Hardware accelerated
WebGL2: Hardware accelerated
WebGPU: Disabled

Driver Bug Workarounds

clear_uniforms_before_first_program_use
decode_encode_srgb_for_generatemipmap
disable_delayed_copy_nv12
enable_webgl_timer_query_extensions
exit_on_context_lost
exit_on_context_lost
disabled_extension_GL_KHR_blend_equation_advanced
disabled_extension_GL_KHR_blend_equation_advanced_coherent

Problems Detected

WebGPU has been disabled via blocklist or the command line.
Disabled Features: webgpu
Some drivers are unable to reset the D3D device in the GPU process sandbox
Applied Workarounds: exit_on_context_lost
Clear uniforms before first program use on all platforms: 124764, 349137
Applied Workarounds: clear_uniforms_before_first_program_use
Disable KHR_blend_equation_advanced until cc shaders are updated: 661715
Applied Workarounds: disable(GL_KHR_blend_equation_advanced), disable(GL_KHR_blend_equation_advanced_coherent)
Decode and Encode before generateMipmap for srgb format textures on Windows: 634519
Applied Workarounds: decode_encode_srgb_for_generatemipmap
Delayed copy NV12 displays incorrect colors on NVIDIA drivers.: 728670
Applied Workarounds: disable_delayed_copy_nv12
Expose WebGL's disjoint_timer_query extensions on platforms with site isolation: 808744, 870491
Applied Workarounds: enable_webgl_timer_query_extensions

mib2berlin

@HTDx64
Hi, If I remember correctly you can try to disable VSync in the Nvidia setting global or for Vivaldi.
chrome://flags/#enable-gpu-rasterization
is a flag you can try to enable.

Cheers, mib

rroarck

Weirdly disabling that flag fixed the issue for me.